Boat Retrieval Device with Articulated Holder Head
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Solution Overview
Problem
Existing boat pickup and launching devices cause boats to assume undesirable slanted positions during retrieval, leading to flotation issues, especially in wave conditions, as the bow emerges from the water while the stern submerges deeper, disrupting the boat's horizontal floating position.
Innovation Solution
The boat retrieval device is articulated to move horizontally and crosswise to the boom, allowing for a setting movement via a joint that maintains the boat in a horizontal floating position until it is fully lifted, then pivots to a parallel orientation with the boom, using a mechanical design with a steering lever and track system, and cable-driven mechanisms to control gripper shanks for secure pickup and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the boat retrieval device moves the boat along the slanted boom, then the boat is transported from water to deck, but the boat is forced into an undesirable slanted position causing flotation problems
Solution Approach 1:
The holder head is made dynamically adjustable through a setting means that allows it to assume different positions relative to the boom. This enables the retrieval device to adapt its orientation to maintain proper boat flotation during different phases of the retrieval operation, resolving the contradiction between efficient transport and stable flotation.
Solution Approach 2:
The angular position parameter of the holder head relative to the boom is changed during operation. By adjusting this parameter, the system transitions from a fixed slanted position to a variable position that optimizes boat flotation stability while maintaining retrieval functionality.
2Device complexity
If the holder head is fixed to the boom, then the structure is simple, but the boat cannot maintain horizontal floating position during retrieval
Solution Approach 1:
The holder head is made dynamically adjustable through a setting means that allows it to assume different positions relative to the boom. This enables the retrieval device to adapt its orientation to maintain proper boat flotation during different phases of the retrieval operation, resolving the contradiction between efficient transport and stable flotation.
Solution Approach 2:
The setting means is configured to automatically adjust the holder head position in advance during the boat pickup process. This preliminary adjustment ensures the boat maintains proper horizontal floating position before and during the retrieval operation, eliminating operational difficulties without requiring complex manual intervention.
3Ease of operation
If the retrieval device is submerged to pick up the boat, then the boat can be accessed in water, but the bow emerges first causing stern to submerge deeper and create slanted position
Solution Approach 1:
The holder head is made dynamically adjustable through a setting means that allows it to assume different positions relative to the boom. This enables the retrieval device to adapt its orientation to maintain proper boat flotation during different phases of the retrieval operation, resolving the contradiction between efficient transport and stable flotation.
Solution Approach 2:
The angular position parameter of the holder head relative to the boom is changed during operation. By adjusting this parameter, the system transitions from a fixed slanted position to a variable position that optimizes boat flotation stability while maintaining retrieval functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration ensures optimal flotation and prevents slanted positions, allowing the boat to remain horizontal until fully lifted, simplifying the retrieval process and enhancing stability, especially in wave conditions, with a single drive organ controlling all movements via a winch and endless cable system.
Implementation Method 1
the free end of which is held in a predetermined floating position by means of flotation bodies
Data Source
AI summary
The invention relates to a device for a watercraft for picking up and launching boats. The device comprises an extension arm that is coupled in such a manner that it can swing freely on the watercraft, that extends at an acute angle in relation to the surface of the water and floats in water by means of floats. The extension arm comprises guide tracks for a boat retrieving device that is maintained on the extension arm in a longitudinally displaceable manner. The boat retrieving device comprises a holding head that is articulated in a displaceable manner on a running part guided on the guide rails, about an axis that is horizontal and approximately transversal in relation to the extension arm. The running part is connected to the drive means for longitudinally displacing the boat retrieving device. The holding head comprises at least one adjusting means that acts upon its adjusting movement about the horizontal axis.